-f chicago



- in the coniity'of Gool; mid' Stato or" lllinois,hzwe inavent-eil @new and useful improvement in Tractionl and Locomotive-Engines; amil -do hereby declare 'art toy make sind nee` thesomc, `reference being had to? ,f i the accompanying drowingforming port oi this spe'q vciiicetionp f f machine n j `ligure 2' is e longitudinal sectional elevhtion of the seance 'i parte n C, `thesecondary wheels;

" E, the boilergnnd drivingcx-le Flwhich is arranged Ain bearings F, in' tlie housings` Fi,fsuspended from the side rail A. i i y '.llic`driv'iug-wheels Bere `tted to theoxle to work looselythereon, end cerryon their arms or spokes thc y female-rpnutnhoiie. friction-clutch, the m'ale parts of which, F, are splines! or feathered to the axle h", so as 'to be revolved by it, yetslide thereon to and from the ilpartsih, for applylng'the power oi' the seid drivingn wheelsL or not,ee required, also for relieving the en- 1 ginesnt ihst stertingytn'let them attain n high speed n and correspondinginexsureof power, 'to be applied jgiaduolly by forcing the will slip toeome extent nntiithe ctn'ringe attains l en cient motion to `nhn'it of forcing themwbolly to- 1 tive.

l `ngeinst the hearings `liijol* thcnxiqxwhichih -tnrn' hearoegelnst the inner y s 'Less-@F ontcscoitmn'os.

\\ l l l `recessione@intrinseco,end iuguelz,raro.`

conoscono r1 l The chednlarelenod to in these Lotteria 'Patent and parc the name.

`jl'lo ell milioni it nmyfeonccrn Be it known that fi, mns K. Lnrtn`,of Ohicego, A

'tiretl the following is full, cleerfond exec-t `descrip-` tionthereoi, which willeneble.. others skilled in the.

"Myinrention relates to 4, tl'uction-en,gines, nini con.-

lsigure 1 representen side elevation of my improved Figure 5 is n sectionon the line y y ot' iig. il

`Figure (Sis nsection jon the line ze oi'V lig. 5; and Figure 7 is n transverse section of n sidebar of the frame. l y

`Similar letters `of reference indicate corresponding A reprcsontsthe mein port ol the frame; l B, the moin driving-wheels;

1f D, the steering-wheels;`

i llytbe engines..` v i ,".lhelenglnesare connected to cranks Fl on the the clutches together, so that gethen-tomnlo the connectionn complete and posi Itwill hessen that thelinbs of thewheeis Bbeor- I so rlmly connected to the axle that theendpressuro onthe clutch ioprodnee the friction-cannot possibly more the'i'emnio part out ci' its true position; but to y avoid thefrictionpn the cron s may placel collars on the-shaft' next to the hubs of :the wheels. 'llfhone moin driyingfwheeis B are intended to he Y used mainly when the carriage is running along o level or nearly level rond, and nt the highest rote of speed or whereabouts, forv which it is gearedwhenfcon- Vneoted with them; but `for going up steep gradients, `over henry nods, or for drawing henry loods, when it` is desire lo that the can-inge should procfsrl slowlyit is necessary, in order to admit the engines 'to runat their maximum speed, which they must do to maintain their maximum power, to reduce the Vmotion ci the driving-wheels relatively to. theehglues; in some ceses it is 'deeirobleto do this with 'out stopping the machine. For e'ectingfthis chungo v lemploy at secondary sotfofisupportin'gg-wheels,i c, 'preferably of smaller" Ldiameter than vthe wheels "il,

nndnrxonged for movingnpnnd downen the `immo to-nhiitfthe supportjoi' the carriage hom the main wheels to these secondary wheels, -or' back again to 4thc'niein wheels. reducing geni' connect-ing with -the main axlesFl, so that they will be set in motionhy ii'ictionclutchesin I opel-ete thev 'secondary'wheels by vtiresome manner that; the wheels B are, the lutter being-l disconnected simultaneously with the connec- 4tion of the seid secondary wheels. n A

. For importing the motion to the secondary set and i Yredncin 'ltV I employ secondnryffiliation-clutches and chains working over the vdrums G1 ofithe female ports Gl of the secondary li'iciiin-clutches, placed on the malin axle, inside of the clutches of the main wheels, G3 being the male parte of the said secondary clutches. @their connections, for example, cog-wheels,

maybe used in pince of the said chains, Like the arrangement of' the clutches for the wheels B,.the parte GQl the auxiliary clutches are free to revolve on shalt-hot `not to vslide while the mole parte G slide Itonno irom the others, but are feathered `to the shaft.'

These clutches being provided with suitable menne for shifting them readily, it will Lhe seen that the shift ing` for connecting the power or 'disconnecting from the moin shell; may be effected while. the engines are in motion, so thnlt not' only for starting, but -in case such. had roedsnre encountered es to overcome the power n nd gradually stop the machine, the .en inc may he 'relieved end allowed to attain highspce and momentum, asbefore described, for starting, and'ighey bebrought into connection again so as to fonce tltc wheels over-,temporary obstructions.

'ro moet n einem@ el employ friction-emmen@ ence, they must also'be protected from grinding and cutting, and be capable of slipping, to let the enginesl overcome the inertia of the wheels without injury to the parts. Therefore, I make the bearing surfaces of these friction-clutches on a pitch of one inchrise to six.

oreight inches in breadth of face, or within the angles ofZ from 'Z degrees to 10 degrees fromthe ilus-parallel f Ywith the shai'tfand run them in oil or other lubricating substance, and havefound, lv practical demonstration,

tha'A clutches constructed withinv these lingits possess a very much greatec'holding power, whenf'gsed in oil, `v-than others of the same size used dry, asis the "fornman way; also, that the end pressure on the male part, to cause the adherence and the ibrceiequired for separating the parts, are very muchk less than in the common clutches.

I propose, in practice, to make the male parts of the clutches in two parts, divided ou the dotted lines H, and connected by screwing thepart H1 into the other part, and securing them by'set-screws or otherwise, so that the lost motion in the grooves for the crotched shifting-bars H, due no the wear, may be taken up when required by screwing the parts H further in, or so that new parts may be substituted when g they become worn.

The crotched bars Hs and H* are fitted'on a shaft, H, supported ina stud, H'Qnitached to the boiler, lso that' they may move parallel with the axle F2, to have less wearing effect on thewalls of the grooved hubs.

The bars H* are connected to levers H, pivoted at H to supports attached to the boiler, and .they are connected at their upper ends, the one to the screwsha't I and the other to the screw-threaded sleeve l, mounted 0n the top of the boiler, urar the front end, in the support I2.

The shaft I works in the sleeve I, and each has at one 'end a hand-wheel, I"1 I, placed side by side, so that they can both be turned together by one hand, or one may he turned independently of the other. The screw-threads of the said shafts and sleeve are pitched in opposite directions, so that, hy turning them in one direction, the levers H-will be moved toward each other 'at the top and from each other at the bottom, in which case they will force the male clutches F lnto the female parts 11", and when the shafts are turned the other way the clutches will he disconnected.

The bars 1 of the otherclutches are provided with a. similar shaft, 1, and sleeve I", mounted in the top ofthe support I, and'provided wit-h hand-wheels I l, for operation in like manner.

-The axle c of the secondary set of wheels c -ie mounted. insh'earings c, fitted to slide up and dewn in slots, and they are provided with extensions c* at the vinner ends-fand o at .the outer ends; the latter are slotted for theI application of the bevel-pinions c", on the ends of the axle, and they are supportedl onthe vertical shafts c', passing vertically through than), and

having collars c withhr hollow spaces in the said extensions, or below them, for supporting them.

These shafts aro screw-threaded at the upper ends, and screw thronghstrong stud o, projecting from thev frame, by whichandthe screws -the said frameis supported on the beaitngsof'the axley c1, whenthe wheels c are down upon the ground; for thapurpose, and by which and the hgaiin s the axles and thc wheclso are in turn suspended of action.

m the frame" when raised'nnt weer For effecting this shifting of the wheels c, to assume i the load, or to deliver it again to the other wheels, the screw-shafts cl are provided with two bevel-pinions, cl and c, one above the pinion cs and the other below, both feathered to the screw-shafts, and capable of sliding up and down, for gearing with the pinion c5 or n'ot.

They are mounted in a bent plate, c, arrangedon ver- -l` tical extension of' the extension c5 ot' the -bearings c,

to slidenpand down, so that either pinion may bc` ganctwitiiipiuion c, the other being disconnected.

For shifting the plate c", they are connected to arms cl, ot' a shaft, c, (or it may he the ends of the said shaftsuitably bent for e purpose,) mounted so as to oscillate freely inthe ends of arms c, attached to the extension c4 of the bearings ci. l 4

The shaft c is provided with a shifting-lever, c, b which it may he oscillated to shift the plates cu to gear either of the pinions with the pinions c", or adjust them so that neither will gear with them.

One of thc screw-shafts has a right-hand thread and the other atleft-hand, so that when gearing with the axle and screwing in their respective studs, c", they will move in the same direction.

The operation of this apparatus for raising or lowering the wheels c is as follows:

' The clutches for working the chains G being brought together, and motion being imparted to the wheels c and the axle c, which we will suppose it is designed to move down upon the ground to take the load, the attendant will move the bar c" in the right direction, (which may be supposed to be from the boiler), to gear the screws, so that they will be screwed down; this4 .will bring/the lower pinion c up into gean with the pinionc, and the wheels c will bc carried downward;

also the arms fc, shaft c, and shifting-lever c", along with them,.until a pin, 0', on the bar c", comes in contact with n .cam-plate, c, on the frame, which will shiit thc har c" backward enough to disconnect the wheels c, and throw the shafts c1 out of gear. In themeantime the attendant will shift the clutches `of the main driving-wheels, so as to disconnect them, and they will be raised above the ground, s o that the load will be supported on the others.

The pin c and the cam-plate will be arranged relatively to each other, so that the frame shall be raised as high as required on the wheels c, before the bar is shifted.

For shifting the load hack from the wheels c to the wheels B, the attendant will move the bar c" in the other direction, say toward the boiler, bringing the upper wheels into gear with the pinions c", by which the screw-shafts will be turned in the direction to raise the wheels, until a pin, c, comes in contact with the under side of the cam-plate c, and tlujowsthe bar back to the middle position. While this is taking placc,..\lic attendant will again gear the largewheels with the engines, by means of the clutches.

If it be designed to effect these changes when the carriage is running backward, when the motion ofthe pinions c would be reversed, and to trip the bar c" by the cam-plate c', the cam-plate should be arraugcd'so that it may be shifted to the opposite inclination; that is to say, to the dotted, line c,

To obtain the universal motion required for the axle of the grinding-wheels D, I provide the axle D, at the center, with a disk or central enlargement, D, above and below the shaft, of the same thickness, and fit it nuto centers D, to oscillate vertically within a slottcd-enlgrgement, D, of a vertical spindle,=D, passing up through a support, D D", attached to the frame, or to the boiler, which is permanently connected tothe flame, anddown through abracc, B, crotc'hed at the uppereud andhinged to the frame'at D9.'

Between thebottom of the support D", and the top rubber orother spring; D.

`to prevent too free action ofthe spring;

"shalt,` D?, the lattermounted on thel boiler near the front part, in convenient reach 'of theattendant, and i `provided with a lland-wheel for turning it.` The belt. i passes onopposite ends ot the steamfdome, and winds Y on aipulley orrollerrat one side, while it winds olf a wi similar roller ontheother side.

i y ing-axle and the guiding apparatus permits the axle 4to turn freely in any direction that may bereqnired by i i i the most uneven road,` while it furnishes a very strong `and reliable support for it. Also, that it will work `freelyand uniformly, no matter what `may. be the po- `sitionot' the axle,raml alsothat tbe oscillations ofthe axle will not crampthe frame or interferelin any way i i I` prefer to construct tl .`-b:`us,.forming the sides and ends, made from strips of i sheet metal or boiler-plate, bent into the U-forni, repren sented incross-section in iig. 7, and inverted, also connccted `atthefedgesat suitable intervals by the crossstays K, secured by rivets or bolts K'.

` f `eiiclesy` or nearly so, and connectthe opposite sides by. .l t `tlansverse bars.

by the cross-piates"b,` which forni the bearing surfaces n tbn-the boxes, and strengthen `the side plates laterally.

j consists in the attachment oji twcrows'of the socketed y `cups or ferrule M, by riveting or otherwise tothe inl iol' the enlargement D of the spindle, is placed an India The upper end of the spindle is provided with a nut,

Acrotched tongue or hounds, D", areconneeted by theA ends oli. the` crotclied part to the-.axle neal.,.eah.

Dffshafti D, pulley Di, belt D", and a winding- It willybe seenthat this arrangement of the guidwith the drivingfwheels.` i n re frame mainly of one ormore Y.

.-1 proposeto bend thesebars at the ends on true n The vhousingsmayfbeenstin. the iorm shown in the plalm'iewoi' the bottom, iig.` 3, with side plates a tov tittheoutsidesof the barA, and jciuedbelow the bar n 'lhehousings maybe slipped on tlie bars before theymay be made in two partsand'joined together at the '-.lllisconstruction ofthe frame and housings abrds and makes besidesa most convenient form for theat- My improvement inthe construct-ion of the wheels ner face of a broad thin metal rim, so that the spokes of the center o f tliewheel. Also, in the application to the spokes at tile other ends, of tire nuts N, to screw -against the hubs, by whichl the rimsmay' ,be kept-atpV all times in any required degree of tension, and the wheels will be veryfrmly braced laterally."

It is obvious th'at my improved modef ot' applying the power and shifting from one set of-driving-wheels to another is applicable alike to driving street cars, or to locomotives on steam roads.

It is also obvious that the secondary set of, 'wheels which I employ add to the complete` machine superior facilities for use` as a portable engine, as either set ot' the driving-wheels may be employedgforworking the drivingfbelts, while the other set supports the machine, the different sets aifordingdierent speed, suited for dilerent purposes.

Having thus described my invention, Y `.I claim as new and desire to secure by Letters P at ent- 1. rllhe combination in a traction-engine of two sets of driving4wheels, relatively constructed, arranged, and operated as and for the purpose described. Y

2. Providing a traction-engine with one or more pairs of auxiliary supporting-wheels, made vertically I adjustable, so that the weight of the machine may be thrown upon or taken from the 'said' wheels,`substan vtally as described. l 3. The construction of the clntehes'in two parts, and the connection of the same by the one screwing into ihe other, and by a4 set-screw, substantially as specified. i

4. The crot'ehed arms, for working the sliding parts of the clutch es, arranged to move on the support H?, in a line parallel with the axle F2, and connected to the levers Hf and I, substantially as specified.

5. The combination with the pairs of clutch-shifting levers oi the right and left screw-threaded shafts I Il and I5 I, arranged for joint 'and simultaneous or independent action, substantially as specified.

6. The combination with the shifting-lever c" and the shifting-plate c, reversing pini'ous, and theserewrods c1, oi' a cam-plate, for'automatically disconnecting the reversing-pinions, 'substantially as specified.

The afbove speciiication of my invention signed by me this 18th day of March, 1870. V

, JAMES K. LAKE:

Witnesses Guo. W. Mann-E, ALEX. F. Ronnn'rs. 

